What do you mean? I do not see any “bolt pattern” in the picture only bearings, if that’s the case just pop in new bearings
And if you do mean the rear tires, I have not found anything for the pattern described, but you can simply get new hubs, because I would think there is. A 99% chance the rear axle is a 1 inch just order new wheels and matching hubs, because if you need t again later on and you can’t find any now, imagine the price